Zynga’s CityVille 2 is continuing to show impressive growth, now that the developer seems to have turned on the full power of its cross-promotion. The game took the No. 1 spot on this week’s list of fastest-growing Facebook games by daily active users, up 4.36 million DAU for a 1,817 percent gain.

King.com’s Pet Rescue Saga came in at No. 2 with 840,000 DAU, a 127 percent increase. Social Point’s Dragon City is still in the top five games, taking No. 3 with 100,000 DAU. Disney Playdom’s Full Bloom snagged the No. 4 position with 90,000 DAU, a 300 percent gain. Finally, PopCap’s Solitaire Blitz rounded out the list’s top five games with 60,000 DAU, a 14 percent increase.

Four more games on the list showed traffic percentage gains over 20 percent. Plarium’s Stormfall: Age of War brought in 40,000 DAU for a 27 percent increase. Sulake’s Habbo Hotel Brasil grabbed onto 20,000 DAU, up 50 percent. Yard Sale: Hidden Treasures had a 150 percent gain with 12,000 DAU. Mob Science’s Legends: Rise of a Hero was up 11,000 DAU, a 122 percent gain.

All data in this post comes from our traffic tracking service, AppData. Come back for our list of top emerging apps on Friday.

Read our reviews of…

• Dragon City
• Stormfall: Age of War
• DragonBound
• CityVille 2
• Pet Rescue Saga
• Legends: Rise of a Hero
• UberStrike
• Family Farm
• Fashion Designer
• Full Bloom